Oil pump



Jan. 29, 1924. 1,482,930

J. C. PALMER OIL PUMP v Filed May a, 1923 Patented Jan. 29, 1924.

naiiswj STATE PATEN cense r crates.

, JOE C. PALMER, OF FORT WORTH, TEXAS.

OIL PUMP.

Application filed May 8,

pumps and more particularly to an electri cally operated coin-controlled pump; and the object is to provide a simple device which can be operated by the customer without the attention of the owner or proprietor and to provide a simple mechanism which can be installed at small cost and which'can be operated without expense of an attendant. Other objects and advantages will be fully explained in the following description and the invention will be more particularly 2o pointed out in the claims. by

Reference is had to the accompanying drawings which form a part of this application.

The figure of drawing is a diagrammatic view with certain parts shown in section.

The apparatus is provided with a tank 10 and a supply or filling pipe 19 is connected to the tank 10 and to a supply source.

. The tank 10 is also provided with a discharge pipe 18. The inlet to the tank 10 is opened and closed by a valve 8 and the outlet is opened and closed by a valve 9.

Electrical means are provided for controlling and opening the valves 8 and 9.

Stationary electro-magnets 6 and '16 are provided and a movable electro-magnet 5 is provided. A coin chute 1 is provided and the coin chute runs through a contact 2. A

plunger 20 is used to push the coin through the chute 1. As the coin is forced against and past the contact 2, the circuit is completed through the wire 4 to electro-magnets 5 and 6. When the magnets 5 and 6 are energized, the magnet 5 will be drawn to ma net 6. The magnet 5 is suspended on a pivoted bar 21 which has a pivotal mounting 7. The bar 21 actuatesa horizontally disposed valve control rod 22. The rod 21 is connected loosely to the valve control rod 22 for moving this red horizontally for actuating the valves 8 and 9. When the magnets 5 and 6 are energized through the current wire 4, the magnet 5 will carry the fromsaid stationary 1923. Serial No. 637,472.

bar 21 and this bar will slide the control rod'22 to the right as the devices are illustrated in the drawings and so open the valve 8 and close the valve 9. .When the tank 10 is nearing the filling point, or thegasoline rises until the float 13 rises against the contact 14, a circuit is closed through contact 2, wire 12, contact 14, wire 15 and magnets 16 and 5. These magnets will be energized and the magnet 5 will be drawn to magnet 16. The control rod 22 will be actuated and the valve 8 will be closed and the valve 9 will be opened. (The contact 2 and the wire 4 will be disconnected as soon as the coin passes the contact 2 andthe coin will fall into a box 3.) When the valve 9 is opened, the charge of gasoline will be delivered through the discharge pipe 18 to the customer.

A spring 23 is attached to the inside of the contact members 2 for bearing on the coin and retarding thesame and to maintain the contact of the wires for a suficient length of time to shift the magnet 5. The spring 23 will make the contact more certain as the free end of the spring will pro: ject in the path of the coin.

at I claim, is,

1. A liquid feeding device comprising a tank provided with inlet and discharge valves, two stationary magnets and a swinging magnet positioned between and spaced magnets, a lever carrying said swinging magnet, a sliding bar provided with lugs projecting in the path oi the short end of said lever, means for energizing one of said magnets and said, swinging magnet for actuating said lever to open the inlet valve and to close the discharge valve, and means to be actuated by liquid accumulating in said tank for energizing the other stationary magnet and said swinging magnet for actuating said lever and bar to close said inlet valve and to open said discharge valve.

'2. A liquid feeding device comp-rising a tank provided with inlet and discharge valves, two stationary magnets and a swinging magnet positioned between and spacedfrom said stationary magnets, a lever carrying said swinging magnet, a sliding bar provided with lugs projecting in the path of the short end of said lever and connected to said valves, coin-actuated electrical devices tionary magnet and said swinging magnet for energizing one of said stationary magfor actuating said lever and bar for closnets and said swinging magnet for actuatingsaid inlet valve and for opening said dis- 1 ing said lever and bar to open said inlet charge valve. I

valve and to close said discharge valve, and In testimony whereof, I set my hand, this means to be actuated by liquid accumulating 30th day of September, 1922.

in said tank for energizing the other sta- 7' JOE C. PALMER. 

